Travis: Skip TCP bind test because of missing IPv6 support

.travis.yml

@@ -64,7 +64,8 @@ before_script:
 
 script:
     - ${BSYS/*#/} all netpuncher tests aul_test
-    - ./tests/tests 
+      # TODO: Remove SKIP_IPV6_TEST once Travis generally adds ::1 as loopback address.
+    - SKIP_IPV6_TEST=1 ./tests/tests 
     - ./tests/aul_test
 
 after_success:

tests/C4NetIOTest.cpp

@@ -88,6 +88,11 @@ TEST_F(C4NetIOTest, HostAddressCategories)
 // Tests C4NetIOTCP::Bind
 TEST_F(C4NetIOTest, TCPBind)
 {
+	if (getenv("SKIP_IPV6_TEST")) {
+		printf("Skipping C4NetIOTest.TCPBind...\n");
+		return;
+	}
+
 	C4NetIOTCP NetIO;
 	ASSERT_TRUE(NetIO.Init());